- The name "Chacu Challhua" may come from "Chuku Challwa", which is Quechua for anchoveta, a type of Peruvian fish.
- This card is tied with "Hyper-Ancient Shark Megalodon" for the strongest Fish-Type monster at 2900 ATK each.
- This is also the only Dark Fish-Type monster.
- This is also has the highest Level of any Fish-Type monster.
- This is the first "Earthbound Immortal" to have two "personal" effects, (other than the ability to attack directly and not be attacked.)
- This card's design is design is based on the Orca geoglyph.
- This card is based off of an orca, and yet it is also a Fish-Type however an orca is actually a mammal.
Community content is available under CC-BY-SA unless otherwise noted.